Abstract
We propose and demonstrate a silicon
-
on
-
insulator (SOI) on
-
chip programmable filter based on a four
-
tap finite impulse response
structure. The photonic filter is programmable thanks to amplitude and
phase modulation of each tap controlled by thermal heater
s. We further
demonstrate the tunability of the filter central wavelength, bandwidth and
variable passband shape. The tuning range of the central wavelength is at
least 42% of the free spectral range. The bandwidth tuning range is at least
half of the free
spectral range. Our scheme has distinct advantages of
compactness, capability for integrating with electronics
Original language | English |
---|---|
Journal | Optics Express |
Volume | 22 |
Issue number | 26 |
Pages (from-to) | 31993–31998 |
ISSN | 1094-4087 |
DOIs | |
Publication status | Published - 2014 |